Driving mechanism for paper-refining engines.



PATENTED JULY 3, 1906.

E. G. GROCKER.

DRIVING MECHANISM FOR PAPER REPINING ENGINES.

APPLICATION FILED DEO.9,1901.

WITNESSES:

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INVENTOR BY 1% ab/271% ATTORNEYS UNITED; sTAppsr TENtr OFFICE.

EBEN C. GROCKER, OF BRIDGEPOR'I, CONNECTICUT, ASSIGNOR, BY MESN E ASSIGNMENTS.- TO HORACE A. MOSES, OF MITTINEAGUE, MASSACHU- SETTS.

Specification of Letters Patent.

Patented July e, 1906.

Application filed December 9. 1901- Serial No. 85,233.

the material to be acted on which is contained in the shell, and which engines have a driving mechanism for rotating said core orplug. In an application filed by me February 21, 1906, erial No. 246,776, I have shown and described such a refining-engine, the cutting core and plug of which is directly driven by an electric motor, connections being provided by which the cuttin core or plug and its shaft are rotated by the motor and are movable endwise relatively to the motor, this movement being effected by an adjusting mechanism. In the construction set forth in said application these connections include a coupling which connects the motorshaft with the shaft of the cutting core or plug, so-as to allow the plug-shaft to have an endwise or longitudinal movement relatively to the motor and the motor-shaft. While 3 5 this construction prevents to a very large extent the sag or lateral displacement of the cutting core or plug, there is a certain amount of unavoidable sa or lateral dis lacement due to the tremen ous weight of t e cutting 40 core or plug, this core or plug having to be of large proportions due to the exigencies of modern commercial needs. This sag or displacement'of the coreor plug due to its weight results in a binding action taking place in the coupling by which the shaft of the core or lug and the motor-shaft are connected. 'l his binding action is a defect 1n said construction, in that the endwise movement of the shaft of the cutting core or plug toward and from the motor-shaft is rendered diflicult and throws a strain on the adjusting mechanism, and in the second place this binding action interferes withthe transmission of the power from the motor shaft to the core-shaft, causing a considerable 5 5 waste in the power used. Ihave discovered that this defect may be remedied by con necting the motor-shaft and the shaft of the cutting core or plug so that they form practically a common shaft and mounting the motor so that it will partake of the endwise movement of the core-shaft when the latter is adjusted, and a construction embodying these features, which constitute the present invention, will now be described in detail. 6

In the drawings, which illustrate one embodiment of the invention, Figure 1 is a side elevation, partly in section, of a aper-refining engine of the type referred to, showing the presentimprovements, certain parts of the construction being broken away for illustrative purposes. -Fig. 2 is a sectional view, on an enlarged scale, taken on line 2 2 of Fig. 1..

Referring now to said drawings, G indicates a su port or base which may be of any usual ordbsired construction, but which in the best constructions is, as shown, of dimensions suflicient to support both the refiningengine and the driving mechanism. The refining-engine shown comprises the usual outer stationary shell A, supported in any suitable manner, as by standardsrising from the base C, and the usual. cutting core or plug a, which is mounted to rotate within the shell A. This cutting core or plug is mounted on a shaft 0/, which with the plug is movable endwiseor longitudinally to adjust the cuttin -surface of the core relatively to the shell. he means for so adjusting the core and its shaft may be,of anv usual or 4 suitable form-such, for example, as the wheel and screw device shown at A It will be understood that when so adjusted the core or plug and its shaft will be held aga nst endwise movement while rotating by this adjusting mechanism. v

' The driving mechanism employed comprises an electric motor .of any form size, and construction suitable for the pu ose, and this driving-motor is connected wit the shaft of the refining-engine, so that the drive of the motor on the plug-shaftshall be direct and so that the motor-shaft and the core-shaft will form. practically a commonshaft. 1

the drawings) is mounted and arranged so as 7 The electric driving-motor (marked B in to partake of the endwise or longitudinal movement of the cutting core or plug and its shaft when said cutting core or plug and its shaft are adjusted endwise or longitudinally by the adjusting mechanism. The motor B may be supported in any suitable manner, so as to partake of this movement, but it is preferably mounted, as shown, on a support I), which support is movable in a plane substantially parallel with the axis of the cutting core or plug a. This support is or may be formed integrally with the frame of the motor and may be mounted in any suitable manner. Preferably and as shown it is mounted on and is movable lengthwise of the base C, which, as before stated, is of sufficient dimensions to accommodate both the motor and the refining-engine. The motor B is furthermore preferably arranged so that its shaft will be in substantial axial alinement with the shaft 0. and the plug a of the refining-engine, as by thus mounting the motor its drive on the plug-shaft is direct and economy inpower is secured. In order that it may move easily on the base C, the support I) is provided, as shown,'(see Fig. 2,) with bearing-faces b and with flanges depending from the suport, these depending flanges being marked That portion of the base on which the support his mounted and on whichit is adapted to be moved is provided withupwardly-extending portions a, forming tracks. The bearing-faces I) of the SlhppOIl] I) may, if desired, irectly on these upward v slide back and forth extensions or tracks a. Preferably, however,

and as shown there are provided antifrietion members, these antifrictien members being shown as rollers (ff, carried on a short shaft journaled in the upward extensions or tracks c, the bearing-faces I) of the support resting on these antifriction members. The depending flanges bfl'hereinbefore referred to, are provided at opposite sides of the upwardlyextending rojections or tracks jc and extend downward y at the sides of the tracks, these depending flanges/preventing the entrance of water and dirt and the like to the antifriction members I), thus preventing their getting out of order.

' The means connecting the motor-shaft with the shaft of the cutting core or plug, so that the shafts form, essentially, a common shaft and so that the motor may partake of the endwise or longitudinal movement given to the shaft of the cutting core or plug by the adjusting mechanism, consists, preferably, of

a coupling 1), which rigidly connects thecontiguous ends of the plug-shaft a and the motor-shaft P, so that there is no relative endwise or longitudinal movement between the shafts. This-common shaft formed by thus uniting the motor-shaft and the coreshaft may be supported by the ordinary bearmgs ofthe motor and the refining-engine. If desired, however, an additional bearing 1) may be provided arranged between the frame of the motor and the refining-engine, which bearing is or maybe supported on a bracket 1), rising from the support I).

What is claimed is- 1. In a refining-engine, the'combination with a stationary shell, of a cutting core or plugrotatably mounted within the shell, a shaft on which the plug is supported, said shaft and plug being normally held against endwise or longitudinal movement, mechanism for adjusting the plug and its shaft endwise relatively to the shell and retaining them in such position of adjustment while rotating,

an electric motor and connections between it and the plug-shaft whereby the plug shaft .is rotated by the motor and the motor is moved endwise with the plug-shaft when the latter is adjusted by the adjusting mechanism.

I 2. In a refining-en ine, the combination with a stationary shell, of a cutting core or plugrotatably mounted within the shell, a shaft on which the plug is sup orted, said shaft and plug being normally eld against endwise or longitudinal movement, mechanism for adjusting the lug and its shaft endwise relatively to the s ell and retaining them in such position of adjustment while rotating, an electric motor having its axis arranged in substantial axial alinement with the lugshaft, and connections between it and the lug-shaft whereby the plug-shaft is rotated y the motor and themotorismoved endwise with the plug-shaftwhen the latter is adjusted by the adjusting mechanism.

3. In a refining-en ine, with a stationary shell, of a cutting core or plug rotatably mounted within the shell, a shaft on which the plug is supported, said shaft and plug being normally eld against endwise or longitudinal movement, mechanism for adjusting the plu and its shaft endthe combination wise relatively to the shell, and retainingthem in such position of adjustment while rotating, an electric motor having a shaft arranged in substantial axial alinement with the plug-shaft and a coupling for connecting the contiguous ends of t 1e motor-shaft an the plug-shaft and reventing any endwise movement of the s afts relatively to each day of May, 1901.

EBEN O/CROCKER.

Witnesses: S. DAVIS,

. D. LAVINE. 

